```
"You dare to deceive me?" Zhou Kui's eyes nearly burst with rage on the spot.
"If you were innocent, how could you be deceived?"
Lin Yan said, "These letters, your son burns them immediately after reading each one. However, one could more or less guess what is written inside!"
After a pause, Lin Yan chuckled, "As for why there are thirteen letters?"
He raised his eyebrows toward the door.
Zhou Kui saw that standing outside the door was a young and familiar face.
This was a junior flagbearer who served him, pouring tea and running errands.
"Ever since Zhou's son became the Flag Commander, General Flag Envoy Zhou Kui has written him thirteen letters, all sent out by my hand."
"When did you plant someone in my Southwest Linjiang Station?" Zhou Kui's face turned extremely dark.